HAMLIN-L-

Oil · District 08 · Lease #35287

Operator: COSTILLA ENERGY, INC.

Cum Oil

29k BBL

Cum Gas

40k MCF

casinghead

Wells

1

Production

1997-02 — 1998-07

Peak Month

1997-03

Production History

Cum Oil: 29,412 BBL Cum Gas: 39,658 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,112 BBL/mo

Di (annual)

238.1%

b-factor

0.0

EUR

25,849 BBL

R-squared

0.836

type

exponential

Operator History (from monthly production reports)

1997-02 — 1999-04 COSTILLA ENERGY, INC. 27 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1701COSTILLA ENERGY INC.19,0001997-01-15